John Harris 
Army of Shadows [PDF ebook] 

It is the winter of 1944. France is under the iron fist of the Nazis. But liberation is just around the corner and a crew from a Lancaster bomber is part of the fight for Freedom. As they fly towards their European target, a Messerschmitt blazes through the sky in a fiery attack and of the nine-man crew aboard the bomber, only two men survive to parachute into Occupied France. They join an ever-growing army of shadows (the men and women of the French Resistance), to play a lethal game of cat and mouse.